Solartronics cell efficiency refers to the portion of the sun energy in the form of sunlight that can be converted into electricity in your home and business usage. Many consumers and people in the solar industry consider efficiency to be the top most important so they go to china and buy but they forgot the long term usage for your investment needs also the outstanding criterion when assessing a solar panels quality of performance.

The energy from the sun can be captured in two ways: first the heat energy (thermal energy) or as light energy. Photovoltaic technology, also known as solar panels, converts the sun's light energy into an electrical current 12 volts converted into 120 volts or 240 volts depend on your geographical location of your country you are using.

Efficiency in solar panels is simply the measurement of energy output in a given surface area. The more efficient a panel is, the less space it will take up on your roof. However, choosing a more efficient solar panel may not always be the most cost-effective decision available.

IF YOUR PRIMARY GOAL IS TO MAXIMIZE THE AMOUNT OF ELECTRICITY THE CHALLENGE BUT THE AMOUNT OF ROOF SPACE YOU HAVE AVAILABLE TO INSTALL SOLAR PANELS IS LIMITED IN SIZE, YOU MAY CHOOSE TO INSTALL THE HIGHER EFFICIENCY SOLAR PANELS. DON’T WORRY THE SOLAR DESIGNER AND CONSULTANT WILL ASSIST YOU BEST FITS ON YOUR NEEDS.

SO HOW CAN I DETERMINE MY SOLAR ENERGY EFFECIENTY ?
Efficiency can be measured by the number of kWh (kilowatt-hours) of energy produced an "average" 150 watt solar panel of one square meter in size  

Factors you need to know about the efficiency of your solar panel ? This are the following

HOW MUCH SUNLIGHT IT GETS;  
THE ANGLE OF YOUR SOLAR PANELS IN THE ROOF;
WHETHER PARTS OF THE CELL ARE SHADED;
HOW CLEAN THE SOLAR PANELS ARE.